JsonKey class Null safety

An annotation used to specify how a field is serialized.

Annotations

Constructors

JsonKey({@Deprecated('Has no effect') bool? nullable, Object? defaultValue, bool? disallowNullValue, Function? fromJson, bool? ignore, bool? includeIfNull, String? name, bool? required, Function? toJson, Object? unknownEnumValue}): Creates a new JsonKey instance. [...]
const

defaultValue → Object?: The value to use if the source JSON does not contain this key or if the value is null.
final
disallowNullValue → bool?: If true, generated code will throw a DisallowedNullValueException if the corresponding key exists, but the value is null. [...]
final
fromJson → Function?: A Function to use when decoding the associated JSON value to the annotated field. [...]
final
hashCode → int: The hash code for this object. [...]
read-only, inherited
ignore → bool?: true if the generator should ignore this field completely. [...]
final
includeIfNull → bool?: Whether the generator should include fields with null values in the serialized output. [...]
final
name → String?: The key in a JSON map to use when reading and writing values corresponding to the annotated fields. [...]
final
required → bool?: When true, generated code for fromJson will verify that the source JSON map contains the associated key. [...]
final
runtimeType → Type: A representation of the runtime type of the object.
read-only, inherited
toJson → Function?: A Function to use when encoding the annotated field to JSON. [...]
final
unknownEnumValue → Object?: The value to use for an enum field when the value provided is not in the source enum. [...]
final

noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed. [...]
inherited
toString() → String: A string representation of this object. [...]
inherited